src/LyX.cpp

   1 /**
   2  * \file LyX.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alfredo Braunstein
   7  * \author Lars Gullik Bjønnes
   8  * \author Jean-Marc Lasgouttes
   9  * \author John Levon
  10  * \author André Pönitz
  11  *
  12  * Full author contact details are available in file CREDITS.
  13  */
  14
  15 #include <config.h>
  16 #include <version.h>
  17
  18 #include "LyX.h"
  19
  20 #include "Color.h"
  21 #include "ConverterCache.h"
  22 #include "Buffer.h"
  23 #include "buffer_funcs.h"
  24 #include "BufferList.h"
  25 #include "Converter.h"
  26 #include "CutAndPaste.h"
  27 #include "debug.h"
  28 #include "Encoding.h"
  29 #include "ErrorList.h"
  30 #include "Format.h"
  31 #include "gettext.h"
  32 #include "KeyMap.h"
  33 #include "CmdDef.h"
  34 #include "Language.h"
  35 #include "Session.h"
  36 #include "LyXAction.h"
  37 #include "LyXFunc.h"
  38 #include "Lexer.h"
  39 #include "LyXRC.h"
  40 #include "ModuleList.h"
  41 #include "Server.h"
  42 #include "ServerSocket.h"
  43 #include "TextClassList.h"
  44 #include "MenuBackend.h"
  45 #include "Messages.h"
  46 #include "Mover.h"
  47 #include "ToolbarBackend.h"
  48
  49 #include "frontends/alert.h"
  50 #include "frontends/Application.h"
  51
  52 #include "support/environment.h"
  53 #include "support/filetools.h"
  54 #include "support/lstrings.h"
  55 #include "support/lyxlib.h"
  56 #include "support/ExceptionMessage.h"
  57 #include "support/os.h"
  58 #include "support/Package.h"
  59 #include "support/Path.h"
  60 #include "support/Systemcall.h"
  61
  62 #include <boost/bind.hpp>
  63 #include <boost/scoped_ptr.hpp>
  64
  65 #include <algorithm>
  66 #include <iostream>
  67 #include <csignal>
  68 #include <map>
  69 #include <string>
  70 #include <vector>
  71
  72 using std::endl;
  73 using std::for_each;
  74 using std::map;
  75 using std::make_pair;
  76 using std::string;
  77 using std::vector;
  78
  79 #ifndef CXX_GLOBAL_CSTD
  80 using std::exit;
  81 using std::signal;
  82 using std::system;
  83 #endif
  84
  85 namespace lyx {
  86
  87 using support::addName;
  88 using support::addPath;
  89 using support::bformat;
  90 using support::changeExtension;
  91 using support::createLyXTmpDir;
  92 using support::FileName;
  93 using support::fileSearch;
  94 using support::getEnv;
  95 using support::i18nLibFileSearch;
  96 using support::libFileSearch;
  97 using support::package;
  98 using support::prependEnvPath;
  99 using support::rtrim;
 100 using support::Systemcall;
 101
 102 namespace Alert = frontend::Alert;
 103 namespace os = support::os;
 104
 105
 106
 107 // Are we using the GUI at all?  We default to true and this is changed
 108 // to false when the export feature is used.
 109
 110 bool use_gui = true;
 111
 112 bool quitting;  // flag, that we are quitting the program
 113
 114 namespace {
 115
 116 // Filled with the command line arguments "foo" of "-sysdir foo" or
 117 // "-userdir foo".
 118 string cl_system_support;
 119 string cl_user_support;
 120
 121 std::string geometryArg;
 122
 123 LyX * singleton_ = 0;
 124
 125 void showFileError(string const & error)
 126 {
 127         Alert::warning(_("Could not read configuration file"),
 128                        bformat(_("Error while reading the configuration file\n%1$s.\n"
 129                            "Please check your installation."), from_utf8(error)));
 130 }
 131
 132
 133 void reconfigureUserLyXDir()
 134 {
 135         string const configure_command = package().configure_command();
 136
 137         lyxerr << to_utf8(_("LyX: reconfiguring user directory")) << endl;
 138         support::PathChanger p(package().user_support());
 139         Systemcall one;
 140         one.startscript(Systemcall::Wait, configure_command);
 141         lyxerr << "LyX: " << to_utf8(_("Done!")) << endl;
 142 }
 143
 144 } // namespace anon
 145
 146
 147 /// The main application class private implementation.
 148 struct LyX::Impl
 149 {
 150         Impl()
 151         {
 152                 // Set the default User Interface language as soon as possible.
 153                 // The language used will be derived from the environment
 154                 // variables.
 155                 messages_["GUI"] = Messages();
 156         }
 157         /// our function handler
 158         LyXFunc lyxfunc_;
 159         ///
 160         BufferList buffer_list_;
 161         ///
 162         boost::scoped_ptr<KeyMap> toplevel_keymap_;
 163         ///
 164         boost::scoped_ptr<CmdDef> toplevel_cmddef_;
 165         ///
 166         boost::scoped_ptr<Server> lyx_server_;
 167         ///
 168         boost::scoped_ptr<ServerSocket> lyx_socket_;
 169         ///
 170         boost::scoped_ptr<frontend::Application> application_;
 171         /// lyx session, containing lastfiles, lastfilepos, and lastopened
 172         boost::scoped_ptr<Session> session_;
 173
 174         /// Files to load at start.
 175         vector<FileName> files_to_load_;
 176
 177         /// The messages translators.
 178         map<string, Messages> messages_;
 179
 180         /// The file converters.
 181         Converters converters_;
 182
 183         // The system converters copy after reading lyxrc.defaults.
 184         Converters system_converters_;
 185
 186         ///
 187         Movers movers_;
 188         ///
 189         Movers system_movers_;
 190
 191         /// has this user started lyx for the first time?
 192         bool first_start;
 193         /// the parsed command line batch command if any
 194         std::string batch_command;
 195 };
 196
 197 ///
 198 frontend::Application * theApp()
 199 {
 200         if (singleton_)
 201                 return singleton_->pimpl_->application_.get();
 202         else
 203                 return 0;
 204 }
 205
 206
 207 LyX::~LyX()
 208 {
 209         delete pimpl_;
 210 }
 211
 212
 213 LyX & LyX::ref()
 214 {
 215         BOOST_ASSERT(singleton_);
 216         return *singleton_;
 217 }
 218
 219
 220 LyX const & LyX::cref()
 221 {
 222         BOOST_ASSERT(singleton_);
 223         return *singleton_;
 224 }
 225
 226
 227 LyX::LyX()
 228         : first_start(false)
 229 {
 230         singleton_ = this;
 231         pimpl_ = new Impl;
 232 }
 233
 234
 235 BufferList & LyX::bufferList()
 236 {
 237         return pimpl_->buffer_list_;
 238 }
 239
 240
 241 BufferList const & LyX::bufferList() const
 242 {
 243         return pimpl_->buffer_list_;
 244 }
 245
 246
 247 Session & LyX::session()
 248 {
 249         BOOST_ASSERT(pimpl_->session_.get());
 250         return *pimpl_->session_.get();
 251 }
 252
 253
 254 Session const & LyX::session() const
 255 {
 256         BOOST_ASSERT(pimpl_->session_.get());
 257         return *pimpl_->session_.get();
 258 }
 259
 260
 261 LyXFunc & LyX::lyxFunc()
 262 {
 263         return pimpl_->lyxfunc_;
 264 }
 265
 266
 267 LyXFunc const & LyX::lyxFunc() const
 268 {
 269         return pimpl_->lyxfunc_;
 270 }
 271
 272
 273 Server & LyX::server()
 274 {
 275         BOOST_ASSERT(pimpl_->lyx_server_.get());
 276         return *pimpl_->lyx_server_.get();
 277 }
 278
 279
 280 Server const & LyX::server() const
 281 {
 282         BOOST_ASSERT(pimpl_->lyx_server_.get());
 283         return *pimpl_->lyx_server_.get();
 284 }
 285
 286
 287 ServerSocket & LyX::socket()
 288 {
 289         BOOST_ASSERT(pimpl_->lyx_socket_.get());
 290         return *pimpl_->lyx_socket_.get();
 291 }
 292
 293
 294 ServerSocket const & LyX::socket() const
 295 {
 296         BOOST_ASSERT(pimpl_->lyx_socket_.get());
 297         return *pimpl_->lyx_socket_.get();
 298 }
 299
 300
 301 frontend::Application & LyX::application()
 302 {
 303         BOOST_ASSERT(pimpl_->application_.get());
 304         return *pimpl_->application_.get();
 305 }
 306
 307
 308 frontend::Application const & LyX::application() const
 309 {
 310         BOOST_ASSERT(pimpl_->application_.get());
 311         return *pimpl_->application_.get();
 312 }
 313
 314
 315 KeyMap & LyX::topLevelKeymap()
 316 {
 317         BOOST_ASSERT(pimpl_->toplevel_keymap_.get());
 318         return *pimpl_->toplevel_keymap_.get();
 319 }
 320
 321
 322 CmdDef & LyX::topLevelCmdDef()
 323 {
 324         BOOST_ASSERT(pimpl_->toplevel_cmddef_.get());
 325         return *pimpl_->toplevel_cmddef_.get();
 326 }
 327
 328
 329 Converters & LyX::converters()
 330 {
 331         return pimpl_->converters_;
 332 }
 333
 334
 335 Converters & LyX::systemConverters()
 336 {
 337         return pimpl_->system_converters_;
 338 }
 339
 340
 341 KeyMap const & LyX::topLevelKeymap() const
 342 {
 343         BOOST_ASSERT(pimpl_->toplevel_keymap_.get());
 344         return *pimpl_->toplevel_keymap_.get();
 345 }
 346
 347
 348 Messages & LyX::getMessages(std::string const & language)
 349 {
 350         map<string, Messages>::iterator it = pimpl_->messages_.find(language);
 351
 352         if (it != pimpl_->messages_.end())
 353                 return it->second;
 354
 355         std::pair<map<string, Messages>::iterator, bool> result =
 356                         pimpl_->messages_.insert(std::make_pair(language, Messages(language)));
 357
 358         BOOST_ASSERT(result.second);
 359         return result.first->second;
 360 }
 361
 362
 363 Messages & LyX::getGuiMessages()
 364 {
 365         return pimpl_->messages_["GUI"];
 366 }
 367
 368
 369 void LyX::setGuiLanguage(std::string const & language)
 370 {
 371         pimpl_->messages_["GUI"] = Messages(language);
 372 }
 373
 374
 375 int LyX::exec(int & argc, char * argv[])
 376 {
 377         // Here we need to parse the command line. At least
 378         // we need to parse for "-dbg" and "-help"
 379         easyParse(argc, argv);
 380
 381         try {
 382                 support::init_package(to_utf8(from_local8bit(argv[0])),
 383                               cl_system_support, cl_user_support,
 384                               support::top_build_dir_is_one_level_up);
 385         } catch (support::ExceptionMessage const & message) {
 386                 if (message.type_ == support::ErrorException) {
 387                         Alert::error(message.title_, message.details_);
 388                         exit(1);
 389                 } else if (message.type_ == support::WarningException) {
 390                         Alert::warning(message.title_, message.details_);
 391                 }
 392         }
 393
 394         // Reinit the messages machinery in case package() knows
 395         // something interesting about the locale directory.
 396         Messages::init();
 397
 398         if (!use_gui) {
 399                 // FIXME: create a ConsoleApplication
 400                 int exit_status = init(argc, argv);
 401                 if (exit_status) {
 402                         prepareExit();
 403                         return exit_status;
 404                 }
 405
 406                 loadFiles();
 407
 408                 if (pimpl_->batch_command.empty() || pimpl_->buffer_list_.empty()) {
 409                         prepareExit();
 410                         return EXIT_SUCCESS;
 411                 }
 412
 413                 BufferList::iterator begin = pimpl_->buffer_list_.begin();
 414
 415                 bool final_success = false;
 416                 for (BufferList::iterator I = begin; I != pimpl_->buffer_list_.end(); ++I) {
 417                         Buffer * buf = *I;
 418                         if (buf != buf->masterBuffer())
 419                                 continue;
 420                         bool success = false;
 421                         buf->dispatch(pimpl_->batch_command, &success);
 422                         final_success |= success;
 423                 }
 424                 prepareExit();
 425                 return !final_success;
 426         }
 427
 428         // Let the frontend parse and remove all arguments that it knows
 429         pimpl_->application_.reset(createApplication(argc, argv));
 430
 431         // Parse and remove all known arguments in the LyX singleton
 432         // Give an error for all remaining ones.
 433         int exit_status = init(argc, argv);
 434         if (exit_status) {
 435                 // Kill the application object before exiting.
 436                 pimpl_->application_.reset();
 437                 use_gui = false;
 438                 prepareExit();
 439                 return exit_status;
 440         }
 441
 442         // FIXME
 443         /* Create a CoreApplication class that will provide the main event loop
 444         * and the socket callback registering. With Qt4, only QtCore
 445         * library would be needed.
 446         * When this is done, a server_mode could be created and the following two
 447         * line would be moved out from here.
 448         */
 449         // Note: socket callback must be registered after init(argc, argv)
 450         // such that package().temp_dir() is properly initialized.
 451         pimpl_->lyx_server_.reset(new Server(&pimpl_->lyxfunc_, lyxrc.lyxpipes));
 452         pimpl_->lyx_socket_.reset(new ServerSocket(&pimpl_->lyxfunc_,
 453                         FileName(package().temp_dir().absFilename() + "/lyxsocket")));
 454
 455         // Start the real execution loop.
 456         exit_status = pimpl_->application_->exec();
 457
 458         prepareExit();
 459
 460         return exit_status;
 461 }
 462
 463
 464 void LyX::prepareExit()
 465 {
 466         // Clear the clipboard and selection stack:
 467         cap::clearCutStack();
 468         cap::clearSelection();
 469
 470         // Set a flag that we do quitting from the program,
 471         // so no refreshes are necessary.
 472         quitting = true;
 473
 474         // close buffers first
 475         pimpl_->buffer_list_.closeAll();
 476
 477         // do any other cleanup procedures now
 478         if (package().temp_dir() != package().system_temp_dir()) {
 479                 LYXERR(Debug::INFO, "Deleting tmp dir "
 480                                     << package().temp_dir().absFilename());
 481
 482                 if (!package().temp_dir().destroyDirectory()) {
 483                         docstring const msg =
 484                                 bformat(_("Unable to remove the temporary directory %1$s"),
 485                                 from_utf8(package().temp_dir().absFilename()));
 486                         Alert::warning(_("Unable to remove temporary directory"), msg);
 487                 }
 488         }
 489
 490         if (use_gui) {
 491                 if (pimpl_->session_)
 492                         pimpl_->session_->writeFile();
 493                 pimpl_->session_.reset();
 494                 pimpl_->lyx_server_.reset();
 495                 pimpl_->lyx_socket_.reset();
 496         }
 497
 498         // Kill the application object before exiting. This avoids crashes
 499         // when exiting on Linux.
 500         if (pimpl_->application_)
 501                 pimpl_->application_.reset();
 502 }
 503
 504
 505 void LyX::earlyExit(int status)
 506 {
 507         BOOST_ASSERT(pimpl_->application_.get());
 508         // LyX::pimpl_::application_ is not initialised at this
 509         // point so it's safe to just exit after some cleanup.
 510         prepareExit();
 511         exit(status);
 512 }
 513
 514
 515 int LyX::init(int & argc, char * argv[])
 516 {
 517         // check for any spurious extra arguments
 518         // other than documents
 519         for (int argi = 1; argi < argc ; ++argi) {
 520                 if (argv[argi][0] == '-') {
 521                         lyxerr << to_utf8(
 522                                 bformat(_("Wrong command line option `%1$s'. Exiting."),
 523                                 from_utf8(argv[argi]))) << endl;
 524                         return EXIT_FAILURE;
 525                 }
 526         }
 527
 528         // Initialization of LyX (reads lyxrc and more)
 529         LYXERR(Debug::INIT, "Initializing LyX::init...");
 530         bool success = init();
 531         LYXERR(Debug::INIT, "Initializing LyX::init...done");
 532         if (!success)
 533                 return EXIT_FAILURE;
 534
 535         for (int argi = argc - 1; argi >= 1; --argi) {
 536                 // get absolute path of file and add ".lyx" to
 537                 // the filename if necessary
 538                 pimpl_->files_to_load_.push_back(fileSearch(string(),
 539                         os::internal_path(to_utf8(from_local8bit(argv[argi]))),
 540                         "lyx", support::allow_unreadable));
 541         }
 542
 543         if (first_start)
 544                 pimpl_->files_to_load_.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 545
 546         return EXIT_SUCCESS;
 547 }
 548
 549
 550 void LyX::addFileToLoad(FileName const & fname)
 551 {
 552         vector<FileName>::const_iterator cit = std::find(
 553                 pimpl_->files_to_load_.begin(), pimpl_->files_to_load_.end(),
 554                 fname);
 555
 556         if (cit == pimpl_->files_to_load_.end())
 557                 pimpl_->files_to_load_.push_back(fname);
 558 }
 559
 560
 561 void LyX::loadFiles()
 562 {
 563         vector<FileName>::const_iterator it = pimpl_->files_to_load_.begin();
 564         vector<FileName>::const_iterator end = pimpl_->files_to_load_.end();
 565
 566         for (; it != end; ++it) {
 567                 if (it->empty())
 568                         continue;
 569
 570                 Buffer * buf = pimpl_->buffer_list_.newBuffer(it->absFilename(), false);
 571                 if (buf->loadLyXFile(*it)) {
 572                         ErrorList const & el = buf->errorList("Parse");
 573                         if (!el.empty())
 574                                 for_each(el.begin(), el.end(),
 575                                 boost::bind(&LyX::printError, this, _1));
 576                 }
 577                 else
 578                         pimpl_->buffer_list_.release(buf);
 579         }
 580 }
 581
 582
 583 void LyX::execBatchCommands()
 584 {
 585         // The advantage of doing this here is that the event loop
 586         // is already started. So any need for interaction will be
 587         // aknowledged.
 588         restoreGuiSession();
 589
 590         // if reconfiguration is needed.
 591         if (textclasslist.empty()) {
 592             switch (Alert::prompt(
 593                     _("No textclass is found"),
 594                     _("LyX cannot continue because no textclass is found. "
 595                       "You can either reconfigure normally, or reconfigure using "
 596                       "default textclasses, or quit LyX."),
 597                     0, 2,
 598                     _("&Reconfigure"),
 599                     _("&Use Default"),
 600                     _("&Exit LyX")))
 601                 {
 602                 case 0:
 603                         // regular reconfigure
 604                         pimpl_->lyxfunc_.dispatch(FuncRequest(LFUN_RECONFIGURE, ""));
 605                         break;
 606                 case 1:
 607                         // reconfigure --without-latex-config
 608                         pimpl_->lyxfunc_.dispatch(FuncRequest(LFUN_RECONFIGURE,
 609                                 " --without-latex-config"));
 610                         break;
 611                 }
 612                 pimpl_->lyxfunc_.dispatch(FuncRequest(LFUN_LYX_QUIT));
 613                 return;
 614         }
 615
 616         // Execute batch commands if available
 617         if (pimpl_->batch_command.empty())
 618                 return;
 619
 620         LYXERR(Debug::INIT, "About to handle -x '" << pimpl_->batch_command << '\'');
 621
 622         pimpl_->lyxfunc_.dispatch(lyxaction.lookupFunc(pimpl_->batch_command));
 623 }
 624
 625
 626 void LyX::restoreGuiSession()
 627 {
 628         // create the main window
 629         pimpl_->application_->createView(geometryArg);
 630
 631         // if there is no valid class list, do not load any file.
 632         if (textclasslist.empty())
 633                 return;
 634
 635         // if some files were specified at command-line we assume that the
 636         // user wants to edit *these* files and not to restore the session.
 637         if (!pimpl_->files_to_load_.empty()) {
 638                 for_each(pimpl_->files_to_load_.begin(),
 639                         pimpl_->files_to_load_.end(),
 640                         bind(&LyXFunc::loadAndViewFile, pimpl_->lyxfunc_, _1, true));
 641                 // clear this list to save a few bytes of RAM
 642                 pimpl_->files_to_load_.clear();
 643                 pimpl_->session_->lastOpened().clear();
 644
 645         } else if (lyxrc.load_session) {
 646                 vector<FileName> const & lastopened = pimpl_->session_->lastOpened().getfiles();
 647                 // do not add to the lastfile list since these files are restored from
 648                 // last session, and should be already there (regular files), or should
 649                 // not be added at all (help files).
 650                 for_each(lastopened.begin(), lastopened.end(),
 651                         bind(&LyXFunc::loadAndViewFile, pimpl_->lyxfunc_, _1, false));
 652
 653                 // clear this list to save a few bytes of RAM
 654                 pimpl_->session_->lastOpened().clear();
 655         }
 656
 657         BufferList::iterator I = pimpl_->buffer_list_.begin();
 658         BufferList::iterator end = pimpl_->buffer_list_.end();
 659         for (; I != end; ++I) {
 660                 Buffer * buf = *I;
 661                 if (buf != buf->masterBuffer())
 662                         continue;
 663                 updateLabels(*buf);
 664         }
 665 }
 666
 667 /*
 668 Signals and Windows
 669 ===================
 670 The SIGHUP signal does not exist on Windows and does not need to be handled.
 671
 672 Windows handles SIGFPE and SIGSEGV signals as expected.
 673
 674 Cntl+C interrupts (mapped to SIGINT by Windows' POSIX compatability layer)
 675 cause a new thread to be spawned. This may well result in unexpected
 676 behaviour by the single-threaded LyX.
 677
 678 SIGTERM signals will come only from another process actually sending
 679 that signal using 'raise' in Windows' POSIX compatability layer. It will
 680 not come from the general "terminate process" methods that everyone
 681 actually uses (and which can't be trapped). Killing an app 'politely' on
 682 Windows involves first sending a WM_CLOSE message, something that is
 683 caught already by the Qt frontend.
 684
 685 For more information see:
 686
 687 http://aspn.activestate.com/ASPN/Mail/Message/ActiveTcl/2034055
 688 ...signals are mostly useless on Windows for a variety of reasons that are
 689 Windows specific...
 690
 691 'UNIX Application Migration Guide, Chapter 9'
 692 http://msdn.microsoft.com/library/en-us/dnucmg/html/UCMGch09.asp
 693
 694 'How To Terminate an Application "Cleanly" in Win32'
 695 http://support.microsoft.com/default.aspx?scid=kb;en-us;178893
 696 */
 697 extern "C" {
 698
 699 static void error_handler(int err_sig)
 700 {
 701         // Throw away any signals other than the first one received.
 702         static sig_atomic_t handling_error = false;
 703         if (handling_error)
 704                 return;
 705         handling_error = true;
 706
 707         // We have received a signal indicating a fatal error, so
 708         // try and save the data ASAP.
 709         LyX::cref().emergencyCleanup();
 710
 711         // These lyxerr calls may or may not work:
 712
 713         // Signals are asynchronous, so the main program may be in a very
 714         // fragile state when a signal is processed and thus while a signal
 715         // handler function executes.
 716         // In general, therefore, we should avoid performing any
 717         // I/O operations or calling most library and system functions from
 718         // signal handlers.
 719
 720         // This shouldn't matter here, however, as we've already invoked
 721         // emergencyCleanup.
 722         switch (err_sig) {
 723 #ifdef SIGHUP
 724         case SIGHUP:
 725                 lyxerr << "\nlyx: SIGHUP signal caught\nBye." << endl;
 726                 break;
 727 #endif
 728         case SIGFPE:
 729                 lyxerr << "\nlyx: SIGFPE signal caught\nBye." << endl;
 730                 break;
 731         case SIGSEGV:
 732                 lyxerr << "\nlyx: SIGSEGV signal caught\n"
 733                           "Sorry, you have found a bug in LyX. "
 734                           "Please read the bug-reporting instructions "
 735                           "in Help->Introduction and send us a bug report, "
 736                           "if necessary. Thanks !\nBye." << endl;
 737                 break;
 738         case SIGINT:
 739         case SIGTERM:
 740                 // no comments
 741                 break;
 742         }
 743
 744         // Deinstall the signal handlers
 745 #ifdef SIGHUP
 746         signal(SIGHUP, SIG_DFL);
 747 #endif
 748         signal(SIGINT, SIG_DFL);
 749         signal(SIGFPE, SIG_DFL);
 750         signal(SIGSEGV, SIG_DFL);
 751         signal(SIGTERM, SIG_DFL);
 752
 753 #ifdef SIGHUP
 754         if (err_sig == SIGSEGV ||
 755             (err_sig != SIGHUP && !getEnv("LYXDEBUG").empty()))
 756 #else
 757         if (err_sig == SIGSEGV || !getEnv("LYXDEBUG").empty())
 758 #endif
 759                 support::abort();
 760         exit(0);
 761 }
 762
 763 }
 764
 765
 766 void LyX::printError(ErrorItem const & ei)
 767 {
 768         docstring tmp = _("LyX: ") + ei.error + char_type(':')
 769                 + ei.description;
 770         std::cerr << to_utf8(tmp) << std::endl;
 771 }
 772
 773
 774 bool LyX::init()
 775 {
 776 #ifdef SIGHUP
 777         signal(SIGHUP, error_handler);
 778 #endif
 779         signal(SIGFPE, error_handler);
 780         signal(SIGSEGV, error_handler);
 781         signal(SIGINT, error_handler);
 782         signal(SIGTERM, error_handler);
 783         // SIGPIPE can be safely ignored.
 784
 785         lyxrc.tempdir_path = package().temp_dir().absFilename();
 786         lyxrc.document_path = package().document_dir().absFilename();
 787
 788         if (lyxrc.template_path.empty()) {
 789                 lyxrc.template_path = addPath(package().system_support().absFilename(),
 790                                               "templates");
 791         }
 792
 793         //
 794         // Read configuration files
 795         //
 796
 797         // This one may have been distributed along with LyX.
 798         if (!readRcFile("lyxrc.dist"))
 799                 return false;
 800
 801         // Set the language defined by the distributor.
 802         //setGuiLanguage(lyxrc.gui_language);
 803
 804         // Set the PATH correctly.
 805 #if !defined (USE_POSIX_PACKAGING)
 806         // Add the directory containing the LyX executable to the path
 807         // so that LyX can find things like tex2lyx.
 808         if (package().build_support().empty())
 809                 prependEnvPath("PATH", package().binary_dir().absFilename());
 810 #endif
 811         if (!lyxrc.path_prefix.empty())
 812                 prependEnvPath("PATH", lyxrc.path_prefix);
 813
 814         // Check that user LyX directory is ok.
 815         if (queryUserLyXDir(package().explicit_user_support()))
 816                 reconfigureUserLyXDir();
 817
 818         // no need for a splash when there is no GUI
 819         if (!use_gui) {
 820                 first_start = false;
 821         }
 822
 823         // This one is generated in user_support directory by lib/configure.py.
 824         if (!readRcFile("lyxrc.defaults"))
 825                 return false;
 826
 827         // Query the OS to know what formats are viewed natively
 828         formats.setAutoOpen();
 829
 830         // Read lyxrc.dist again to be able to override viewer auto-detection.
 831         readRcFile("lyxrc.dist");
 832
 833         system_lyxrc = lyxrc;
 834         system_formats = formats;
 835         pimpl_->system_converters_ = pimpl_->converters_;
 836         pimpl_->system_movers_ = pimpl_->movers_;
 837         system_lcolor = lcolor;
 838
 839         // This one is edited through the preferences dialog.
 840         if (!readRcFile("preferences"))
 841                 return false;
 842
 843         if (!readEncodingsFile("encodings", "unicodesymbols"))
 844                 return false;
 845         if (!readLanguagesFile("languages"))
 846                 return false;
 847
 848         // Load the layouts
 849         LYXERR(Debug::INIT, "Reading layouts...");
 850         if (!LyXSetStyle())
 851                 return false;
 852         //...and the modules
 853         moduleList.load();
 854
 855         // read keymap and ui files in batch mode as well
 856         // because InsetInfo needs to know these to produce
 857         // the correct output
 858
 859         // Set the language defined by the user.
 860         //setGuiLanguage(lyxrc.gui_language);
 861
 862         // Set up command definitions
 863         pimpl_->toplevel_cmddef_.reset(new CmdDef);
 864         pimpl_->toplevel_cmddef_->read(lyxrc.def_file);
 865
 866         // Set up bindings
 867         pimpl_->toplevel_keymap_.reset(new KeyMap);
 868         pimpl_->toplevel_keymap_->read("site");
 869         pimpl_->toplevel_keymap_->read(lyxrc.bind_file);
 870         // load user bind file user.bind
 871         pimpl_->toplevel_keymap_->read("user");
 872
 873         pimpl_->lyxfunc_.initKeySequences(pimpl_->toplevel_keymap_.get());
 874
 875         // Read menus
 876         if (!readUIFile(lyxrc.ui_file))
 877                 return false;
 878
 879         if (lyxerr.debugging(Debug::LYXRC))
 880                 lyxrc.print();
 881
 882         os::windows_style_tex_paths(lyxrc.windows_style_tex_paths);
 883         if (!lyxrc.path_prefix.empty())
 884                 prependEnvPath("PATH", lyxrc.path_prefix);
 885
 886         FileName const document_path(lyxrc.document_path);
 887         if (document_path.exists() && document_path.isDirectory())
 888                 package().document_dir() = document_path;
 889
 890         package().temp_dir() = createLyXTmpDir(FileName(lyxrc.tempdir_path));
 891         if (package().temp_dir().empty()) {
 892                 Alert::error(_("Could not create temporary directory"),
 893                              bformat(_("Could not create a temporary directory in\n"
 894                                                     "%1$s. Make sure that this\n"
 895                                                     "path exists and is writable and try again."),
 896                                      from_utf8(lyxrc.tempdir_path)));
 897                 // createLyXTmpDir() tries sufficiently hard to create a
 898                 // usable temp dir, so the probability to come here is
 899                 // close to zero. We therefore don't try to overcome this
 900                 // problem with e.g. asking the user for a new path and
 901                 // trying again but simply exit.
 902                 return false;
 903         }
 904
 905         LYXERR(Debug::INIT, "LyX tmp dir: `"
 906                             << package().temp_dir().absFilename() << '\'');
 907
 908         LYXERR(Debug::INIT, "Reading session information '.lyx/session'...");
 909         pimpl_->session_.reset(new Session(lyxrc.num_lastfiles));
 910
 911         // This must happen after package initialization and after lyxrc is
 912         // read, therefore it can't be done by a static object.
 913         ConverterCache::init();
 914
 915         return true;
 916 }
 917
 918
 919 void LyX::emergencyCleanup() const
 920 {
 921         // what to do about tmpfiles is non-obvious. we would
 922         // like to delete any we find, but our lyxdir might
 923         // contain documents etc. which might be helpful on
 924         // a crash
 925
 926         pimpl_->buffer_list_.emergencyWriteAll();
 927         if (use_gui) {
 928                 if (pimpl_->lyx_server_)
 929                         pimpl_->lyx_server_->emergencyCleanup();
 930                 pimpl_->lyx_server_.reset();
 931                 pimpl_->lyx_socket_.reset();
 932         }
 933 }
 934
 935
 936 void LyX::deadKeyBindings(KeyMap * kbmap)
 937 {
 938         // bindKeyings for transparent handling of deadkeys
 939         // The keysyms are gotten from XFree86 X11R6
 940         kbmap->bind("~C-~S-~M-dead_acute", FuncRequest(LFUN_ACCENT_ACUTE));
 941         kbmap->bind("~C-~S-~M-dead_breve", FuncRequest(LFUN_ACCENT_BREVE));
 942         kbmap->bind("~C-~S-~M-dead_caron", FuncRequest(LFUN_ACCENT_CARON));
 943         kbmap->bind("~C-~S-~M-dead_cedilla", FuncRequest(LFUN_ACCENT_CEDILLA));
 944         kbmap->bind("~C-~S-~M-dead_abovering", FuncRequest(LFUN_ACCENT_CIRCLE));
 945         kbmap->bind("~C-~S-~M-dead_circumflex", FuncRequest(LFUN_ACCENT_CIRCUMFLEX));
 946         kbmap->bind("~C-~S-~M-dead_abovedot", FuncRequest(LFUN_ACCENT_DOT));
 947         kbmap->bind("~C-~S-~M-dead_grave", FuncRequest(LFUN_ACCENT_GRAVE));
 948         kbmap->bind("~C-~S-~M-dead_doubleacute", FuncRequest(LFUN_ACCENT_HUNGARIAN_UMLAUT));
 949         kbmap->bind("~C-~S-~M-dead_macron", FuncRequest(LFUN_ACCENT_MACRON));
 950         // nothing with this name
 951         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_ACCENT_SPECIAL_CARON);
 952         kbmap->bind("~C-~S-~M-dead_tilde", FuncRequest(LFUN_ACCENT_TILDE));
 953         kbmap->bind("~C-~S-~M-dead_diaeresis", FuncRequest(LFUN_ACCENT_UMLAUT));
 954         // nothing with this name either...
 955         //kbmap->bind("~C-~S-~M-dead_underbar", FuncRequest(LFUN_ACCENT_UNDERBAR));
 956         kbmap->bind("~C-~S-~M-dead_belowdot", FuncRequest(LFUN_ACCENT_UNDERDOT));
 957         kbmap->bind("~C-~S-~M-dead_tie", FuncRequest(LFUN_ACCENT_TIE));
 958         kbmap->bind("~C-~S-~M-dead_ogonek",FuncRequest(LFUN_ACCENT_OGONEK));
 959 }
 960
 961
 962 // return true if file does not exist or is older than configure.py.
 963 static bool needsUpdate(string const & file)
 964 {
 965         // We cannot initialize configure_script directly because the package
 966         // is not initialized yet when  static objects are constructed.
 967         static FileName configure_script;
 968         static bool firstrun = true;
 969         if (firstrun) {
 970                 configure_script =
 971                         FileName(addName(package().system_support().absFilename(),
 972                                 "configure.py"));
 973                 firstrun = false;
 974         }
 975
 976         FileName absfile =
 977                 FileName(addName(package().user_support().absFilename(), file));
 978         return !absfile.exists()
 979                 || configure_script.lastModified() > absfile.lastModified();
 980 }
 981
 982
 983 bool LyX::queryUserLyXDir(bool explicit_userdir)
 984 {
 985         // Does user directory exist?
 986         FileName const sup = package().user_support();
 987         if (sup.exists() && sup.isDirectory()) {
 988                 first_start = false;
 989
 990                 return needsUpdate("lyxrc.defaults")
 991                         || needsUpdate("lyxmodules.lst")
 992                         || needsUpdate("textclass.lst")
 993                         || needsUpdate("packages.lst");
 994         }
 995
 996         first_start = !explicit_userdir;
 997
 998         // If the user specified explicitly a directory, ask whether
 999         // to create it. If the user says "no", then exit.
1000         if (explicit_userdir &&
1001             Alert::prompt(
1002                     _("Missing user LyX directory"),
1003                     bformat(_("You have specified a non-existent user "
1004                                            "LyX directory, %1$s.\n"
1005                                            "It is needed to keep your own configuration."),
1006                             from_utf8(package().user_support().absFilename())),
1007                     1, 0,
1008                     _("&Create directory"),
1009                     _("&Exit LyX"))) {
1010                 lyxerr << to_utf8(_("No user LyX directory. Exiting.")) << endl;
1011                 earlyExit(EXIT_FAILURE);
1012         }
1013
1014         lyxerr << to_utf8(bformat(_("LyX: Creating directory %1$s"),
1015                           from_utf8(sup.absFilename()))) << endl;
1016
1017         if (!sup.createDirectory(0755)) {
1018                 // Failed, so let's exit.
1019                 lyxerr << to_utf8(_("Failed to create directory. Exiting."))
1020                        << endl;
1021                 earlyExit(EXIT_FAILURE);
1022         }
1023
1024         return true;
1025 }
1026
1027
1028 bool LyX::readRcFile(string const & name)
1029 {
1030         LYXERR(Debug::INIT, "About to read " << name << "... ");
1031
1032         FileName const lyxrc_path = libFileSearch(string(), name);
1033         if (!lyxrc_path.empty()) {
1034                 LYXERR(Debug::INIT, "Found in " << lyxrc_path);
1035                 if (lyxrc.read(lyxrc_path) < 0) {
1036                         showFileError(name);
1037                         return false;
1038                 }
1039         } else {
1040                 LYXERR(Debug::INIT, "Not found." << lyxrc_path);
1041         }
1042         return true;
1043 }
1044
1045
1046 // Read the ui file `name'
1047 bool LyX::readUIFile(string const & name, bool include)
1048 {
1049         enum Uitags {
1050                 ui_menuset = 1,
1051                 ui_toolbars,
1052                 ui_toolbarset,
1053                 ui_include,
1054                 ui_last
1055         };
1056
1057         struct keyword_item uitags[ui_last - 1] = {
1058                 { "include", ui_include },
1059                 { "menuset", ui_menuset },
1060                 { "toolbars", ui_toolbars },
1061                 { "toolbarset", ui_toolbarset }
1062         };
1063
1064         // Ensure that a file is read only once (prevents include loops)
1065         static std::list<string> uifiles;
1066         std::list<string>::const_iterator it  = uifiles.begin();
1067         std::list<string>::const_iterator end = uifiles.end();
1068         it = std::find(it, end, name);
1069         if (it != end) {
1070                 LYXERR(Debug::INIT, "UI file '" << name << "' has been read already. "
1071                                     << "Is this an include loop?");
1072                 return false;
1073         }
1074
1075         LYXERR(Debug::INIT, "About to read " << name << "...");
1076
1077
1078         FileName ui_path;
1079         if (include) {
1080                 ui_path = libFileSearch("ui", name, "inc");
1081                 if (ui_path.empty())
1082                         ui_path = libFileSearch("ui",
1083                                                 changeExtension(name, "inc"));
1084         }
1085         else
1086                 ui_path = libFileSearch("ui", name, "ui");
1087
1088         if (ui_path.empty()) {
1089                 LYXERR(Debug::INIT, "Could not find " << name);
1090                 showFileError(name);
1091                 return false;
1092         }
1093
1094         uifiles.push_back(name);
1095
1096         LYXERR(Debug::INIT, "Found " << name << " in " << ui_path);
1097         Lexer lex(uitags, ui_last - 1);
1098         lex.setFile(ui_path);
1099         if (!lex.isOK()) {
1100                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
1101                        << endl;
1102         }
1103
1104         if (lyxerr.debugging(Debug::PARSER))
1105                 lex.printTable(lyxerr);
1106
1107         while (lex.isOK()) {
1108                 switch (lex.lex()) {
1109                 case ui_include: {
1110                         lex.next(true);
1111                         string const file = lex.getString();
1112                         if (!readUIFile(file, true))
1113                                 return false;
1114                         break;
1115                 }
1116                 case ui_menuset:
1117                         menubackend.read(lex);
1118                         break;
1119
1120                 case ui_toolbarset:
1121                         toolbarbackend.readToolbars(lex);
1122                         break;
1123
1124                 case ui_toolbars:
1125                         toolbarbackend.readToolbarSettings(lex);
1126                         break;
1127
1128                 default:
1129                         if (!rtrim(lex.getString()).empty())
1130                                 lex.printError("LyX::ReadUIFile: "
1131                                                "Unknown menu tag: `$$Token'");
1132                         break;
1133                 }
1134         }
1135         return true;
1136 }
1137
1138
1139 // Read the languages file `name'
1140 bool LyX::readLanguagesFile(string const & name)
1141 {
1142         LYXERR(Debug::INIT, "About to read " << name << "...");
1143
1144         FileName const lang_path = libFileSearch(string(), name);
1145         if (lang_path.empty()) {
1146                 showFileError(name);
1147                 return false;
1148         }
1149         languages.read(lang_path);
1150         return true;
1151 }
1152
1153
1154 // Read the encodings file `name'
1155 bool LyX::readEncodingsFile(string const & enc_name,
1156                             string const & symbols_name)
1157 {
1158         LYXERR(Debug::INIT, "About to read " << enc_name << " and "
1159                             << symbols_name << "...");
1160
1161         FileName const symbols_path = libFileSearch(string(), symbols_name);
1162         if (symbols_path.empty()) {
1163                 showFileError(symbols_name);
1164                 return false;
1165         }
1166
1167         FileName const enc_path = libFileSearch(string(), enc_name);
1168         if (enc_path.empty()) {
1169                 showFileError(enc_name);
1170                 return false;
1171         }
1172         encodings.read(enc_path, symbols_path);
1173         return true;
1174 }
1175
1176
1177 namespace {
1178
1179 string batch;
1180
1181 /// return the the number of arguments consumed
1182 typedef boost::function<int(string const &, string const &)> cmd_helper;
1183
1184 int parse_dbg(string const & arg, string const &)
1185 {
1186         if (arg.empty()) {
1187                 lyxerr << to_utf8(_("List of supported debug flags:")) << endl;
1188                 Debug::showTags(lyxerr);
1189                 exit(0);
1190         }
1191         lyxerr << to_utf8(bformat(_("Setting debug level to %1$s"), from_utf8(arg))) << endl;
1192
1193         lyxerr.level(Debug::value(arg));
1194         Debug::showLevel(lyxerr, lyxerr.level());
1195         return 1;
1196 }
1197
1198
1199 int parse_help(string const &, string const &)
1200 {
1201         lyxerr <<
1202                 to_utf8(_("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
1203                   "Command line switches (case sensitive):\n"
1204                   "\t-help              summarize LyX usage\n"
1205                   "\t-userdir dir       set user directory to dir\n"
1206                   "\t-sysdir dir        set system directory to dir\n"
1207                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
1208                   "\t-dbg feature[,feature]...\n"
1209                   "                  select the features to debug.\n"
1210                   "                  Type `lyx -dbg' to see the list of features\n"
1211                   "\t-x [--execute] command\n"
1212                   "                  where command is a lyx command.\n"
1213                   "\t-e [--export] fmt\n"
1214                   "                  where fmt is the export format of choice.\n"
1215                   "                  Look on Tools->Preferences->File formats->Format\n"
1216                   "                  to get an idea which parameters should be passed.\n"
1217                   "\t-i [--import] fmt file.xxx\n"
1218                   "                  where fmt is the import format of choice\n"
1219                   "                  and file.xxx is the file to be imported.\n"
1220                   "\t-version        summarize version and build info\n"
1221                                "Check the LyX man page for more details.")) << endl;
1222         exit(0);
1223         return 0;
1224 }
1225
1226
1227 int parse_version(string const &, string const &)
1228 {
1229         lyxerr << "LyX " << lyx_version
1230                << " (" << lyx_release_date << ")" << endl;
1231         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
1232
1233         lyxerr << lyx_version_info << endl;
1234         exit(0);
1235         return 0;
1236 }
1237
1238
1239 int parse_sysdir(string const & arg, string const &)
1240 {
1241         if (arg.empty()) {
1242                 Alert::error(_("No system directory"),
1243                         _("Missing directory for -sysdir switch"));
1244                 exit(1);
1245         }
1246         cl_system_support = arg;
1247         return 1;
1248 }
1249
1250
1251 int parse_userdir(string const & arg, string const &)
1252 {
1253         if (arg.empty()) {
1254                 Alert::error(_("No user directory"),
1255                         _("Missing directory for -userdir switch"));
1256                 exit(1);
1257         }
1258         cl_user_support = arg;
1259         return 1;
1260 }
1261
1262
1263 int parse_execute(string const & arg, string const &)
1264 {
1265         if (arg.empty()) {
1266                 Alert::error(_("Incomplete command"),
1267                         _("Missing command string after --execute switch"));
1268                 exit(1);
1269         }
1270         batch = arg;
1271         return 1;
1272 }
1273
1274
1275 int parse_export(string const & type, string const &)
1276 {
1277         if (type.empty()) {
1278                 lyxerr << to_utf8(_("Missing file type [eg latex, ps...] after "
1279                                          "--export switch")) << endl;
1280                 exit(1);
1281         }
1282         batch = "buffer-export " + type;
1283         use_gui = false;
1284         return 1;
1285 }
1286
1287
1288 int parse_import(string const & type, string const & file)
1289 {
1290         if (type.empty()) {
1291                 lyxerr << to_utf8(_("Missing file type [eg latex, ps...] after "
1292                                          "--import switch")) << endl;
1293                 exit(1);
1294         }
1295         if (file.empty()) {
1296                 lyxerr << to_utf8(_("Missing filename for --import")) << endl;
1297                 exit(1);
1298         }
1299
1300         batch = "buffer-import " + type + ' ' + file;
1301         return 2;
1302 }
1303
1304
1305 int parse_geometry(string const & arg1, string const &)
1306 {
1307         geometryArg = arg1;
1308 #if defined(_WIN32) || (defined(__CYGWIN__) && defined(X_DISPLAY_MISSING))
1309         // remove also the arg
1310         return 1;
1311 #else
1312         // don't remove "-geometry"
1313         return -1;
1314 #endif
1315 }
1316
1317
1318 } // namespace anon
1319
1320
1321 void LyX::easyParse(int & argc, char * argv[])
1322 {
1323         std::map<string, cmd_helper> cmdmap;
1324
1325         cmdmap["-dbg"] = parse_dbg;
1326         cmdmap["-help"] = parse_help;
1327         cmdmap["--help"] = parse_help;
1328         cmdmap["-version"] = parse_version;
1329         cmdmap["--version"] = parse_version;
1330         cmdmap["-sysdir"] = parse_sysdir;
1331         cmdmap["-userdir"] = parse_userdir;
1332         cmdmap["-x"] = parse_execute;
1333         cmdmap["--execute"] = parse_execute;
1334         cmdmap["-e"] = parse_export;
1335         cmdmap["--export"] = parse_export;
1336         cmdmap["-i"] = parse_import;
1337         cmdmap["--import"] = parse_import;
1338         cmdmap["-geometry"] = parse_geometry;
1339
1340         for (int i = 1; i < argc; ++i) {
1341                 std::map<string, cmd_helper>::const_iterator it
1342                         = cmdmap.find(argv[i]);
1343
1344                 // don't complain if not found - may be parsed later
1345                 if (it == cmdmap.end())
1346                         continue;
1347
1348                 string const arg =
1349                         (i + 1 < argc) ? to_utf8(from_local8bit(argv[i + 1])) : string();
1350                 string const arg2 =
1351                         (i + 2 < argc) ? to_utf8(from_local8bit(argv[i + 2])) : string();
1352
1353                 int const remove = 1 + it->second(arg, arg2);
1354
1355                 // Now, remove used arguments by shifting
1356                 // the following ones remove places down.
1357                 if (remove > 0) {
1358                         argc -= remove;
1359                         for (int j = i; j < argc; ++j)
1360                                 argv[j] = argv[j + remove];
1361                         --i;
1362                 }
1363         }
1364
1365         pimpl_->batch_command = batch;
1366 }
1367
1368
1369 FuncStatus getStatus(FuncRequest const & action)
1370 {
1371         return LyX::ref().lyxFunc().getStatus(action);
1372 }
1373
1374
1375 void dispatch(FuncRequest const & action)
1376 {
1377         LyX::ref().lyxFunc().dispatch(action);
1378 }
1379
1380
1381 BufferList & theBufferList()
1382 {
1383         return LyX::ref().bufferList();
1384 }
1385
1386
1387 LyXFunc & theLyXFunc()
1388 {
1389         return LyX::ref().lyxFunc();
1390 }
1391
1392
1393 Server & theServer()
1394 {
1395         // FIXME: this should not be use_gui dependent
1396         BOOST_ASSERT(use_gui);
1397         return LyX::ref().server();
1398 }
1399
1400
1401 ServerSocket & theServerSocket()
1402 {
1403         // FIXME: this should not be use_gui dependent
1404         BOOST_ASSERT(use_gui);
1405         return LyX::ref().socket();
1406 }
1407
1408
1409 KeyMap & theTopLevelKeymap()
1410 {
1411         return LyX::ref().topLevelKeymap();
1412 }
1413
1414
1415 Converters & theConverters()
1416 {
1417         return  LyX::ref().converters();
1418 }
1419
1420
1421 Converters & theSystemConverters()
1422 {
1423         return  LyX::ref().systemConverters();
1424 }
1425
1426
1427 Movers & theMovers()
1428 {
1429         return  LyX::ref().pimpl_->movers_;
1430 }
1431
1432
1433 Mover const & getMover(std::string  const & fmt)
1434 {
1435         return  LyX::ref().pimpl_->movers_(fmt);
1436 }
1437
1438
1439 void setMover(std::string const & fmt, std::string const & command)
1440 {
1441         LyX::ref().pimpl_->movers_.set(fmt, command);
1442 }
1443
1444
1445 Movers & theSystemMovers()
1446 {
1447         return  LyX::ref().pimpl_->system_movers_;
1448 }
1449
1450
1451 Messages & getMessages(std::string const & language)
1452 {
1453         return LyX::ref().getMessages(language);
1454 }
1455
1456
1457 Messages & getGuiMessages()
1458 {
1459         return LyX::ref().getGuiMessages();
1460 }
1461
1462 } // namespace lyx